Four metrics require a placed design to be accurate. They do not require a fully routed design.
- LUT Utilization per CLB: Color codes slices based on placed LUT utilization.
- FF Utilization per CLB: Color codes slices based on placed FF utilization.
- Vertical Routing Congestion per CLB: Color codes the fabric based on a best case estimate of vertical routing usage.
- Horizontal Routing Congestion per CLB: Color codes the fabric based on a best case estimate of horizontal routing usage.
For UltraScale+ and newer architectures:
- Interconnect Congestion Level: Color codes the Interconnect Congestion Level based on a worst case estimate of routing usage over contiguous regions.